00295nam a2200097Ia 4500008004100000082001600041100001900057245005600076260005000132300001500182240817s9999    xx            000 0 und d  a66849 P56,p  aPappas S.Peter 0aPhotodegradation and Photostabilization of Coatings  c1981a Washingtonb American Chemical Society  aix,308, p.